Product Item

High-Precision cylindrical roller

The rollers offer higher radial load capacity, making them ideal for space-constrained components. By effectively reducing torque and inertial forces, they enhance machine efficiency. Additionally, as load-bearing components with linear contact, these rollers are structurally suited for applications subject to vibrations or shaking.

Manufactured by EXFIRO, the rollers are crafted from SUJ2 bearing steel and precision-ground multiple times to achieve a hardness of HRC 58–66. The precision-grade rollers feature a diameter tolerance within 0.001mm, cylindricity, and roundness within 0.001mm, with a surface roughness of less than Ra 0.1μm.

Applications:
Roller-type linear slide rails Roller bearings.

Processing Range

  • Outer Diameter : 2mm ~ 40mm
  • Length : 2mm ~ 40mm

Product Precision

  • Outer Diameter Tolerance : 1μm
  • Parallelism : 0.01mm
  • Length Tolerance : 0.01~0.05mm
  • Outer Diameter Roughness : Ra 0.05μm
  • End Surface Roughness : Ra 0.1μm

Application Range

※Custom roller with varying outer diameters and lengths can be manufactured to meet customer requirements.